Swell X


The X Slider is a short, slide on packer designed for flexibility of use, whilst still providing a high integrity seal. The Sliders can be run in series to provide an increased pressure rating.

The short, slip-on nature of these sliders makes them a flexible and practical solution for field installation to client supplied equipment. They operate in the same manner as the X Packer with the swellable nature of the rubber allowing it to conform to micro variations in the bore hole. In isolation or combined with multiple X Sliders this provides a high integrity seal in open hole without exerting excessive force on the wellbore.

The X Slider is energized by the fluid present in the well, whether that be oil or water based. Natural processes of absorption and diffusion assisted by the complex engineering of the rubber matrix draw the fluid inside the slider which then swells to contact the wellbore and provide a seal.

A series of X Sliders can be installed to increase the pressure rating of the seal. They provide effective isolation in a wide range of scenarios and can be manufactured to suit any base pipe or screen size.


X Sliders are a simple, more reliable means of isolation than alternatives such as inflatable packers and mechanical packers and can be used in conjunction with cement to enhance well integrity. Their robust design and simple operation mean they are a flexible solution in many situations where a pressure seal or fluid and debris barrier is required. Specific applications include:

  • Between sleeve isolation for hydraulic fracturing (particularly effective with multiple sleeves opened with a single ball)
  • Debris barrier
  • Flow diversion
  • Isolation of Sustained Casing Pressure
  • Cement integrity (micro-annuli and mud channelling)
  • Between screen zonal isolation for gravel packing and sand screens